Mounting for a spindle base of a spinning and twisting spindle in a textile machine



Feb. 10, 1959 TWISTING SPINDLE IN A TEXTILE MACHINE.

Filed March 22, 1956 7 /0 'Il' V FIG. 1* FIG.- 4

E t A o dum' aw 32 United States Patent MOUNTING FoR A SPINDLE BASE or A SPIN? NING AND TWISTING SPINDLE IN A TEXTILE MACHINE Heinrich Fink, Esslingen, Hegensberg, Germany, assignor to SKF Kugellagerfabriken G. in. b. H., Schweinfurt,

The present invention relates to spinning and twisting machines for spinning and twisting textile yarns, for exf ample.

More particularly, the present invention relates to a structure for mounting a spindle base of a spinning and twisting machine.

In machines of the above type the spindles themselves are carried respectively by spindle bases, and where the spindles are fixed to the spindle bases, it is necessary to provide means for damping the movements of the spindle base as well as adjusting the resiliency with which it is mounted, and these results are very difiicult to produce effectively with known constructions.

One of the objects of the present invention is to provide a mounting capable of resiliently holding a spindle base for a limited radial movement.

Another object of the present invention is to provide a resilient mounting for a spindle basewhich can be adjusted so as to adjust the damping provided by the mounting of the spindle base.

An additional object of the present invention is to provide a spindle base mounting which is characterized by great simplicity and reliability of operation as well as by a long life and small maintenance requirements.

With the above objects in view the present invention mainly consists of a spinning and twisting machine which includes a spindle rail formed with an opening passing therethrough. A spindle base passes with clearance through this opening, and on at least one side of the spindle rail a resilient sleeve surrounds the elongated spindle base and has an end of a larger diameter than the latter engaging the spindle rail and maintained by the latter against radial displacement. The end of the sleeve distant from the rail is of a smaller diameter and surrounds the spindle base and is engaged by a means carried by the spindle base for adjusting the stress of the sleeve.

The novel features which are considered as characteristic for the invention are set forth in particular .in the appended claim. The invention itself, however, both as to its construction and its method of operation together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings, in which:

Fig. 1 shows in a fragmentary sectional elevational view one possible embodiment of a spindle base mounting structure according to the present invention;

Fig. 2 is a fragmentary sectional elevational view of another embodiment of the structure according to the present invention;

Fig. 3 is a fragmentary sectional elevational view of a third embodiment of a construction according to the present invention; and

Fig. 4 is a fragmentary sectional elevational view of a fourth embodiment according to the present invention.

Referring now to the drawings and to Fig. 1 in particular, it will be seen that the structure of the invention in- 2 cludes a spindle rail 1 formed with an opening 2 passing therethrough. An elongated spindle base 3, which is adapted to carry the spindle itself, passes with clearance through the opening 2, so that the base 3 has a limited freedom of radial movement in the opening 2. Thebase 3 is provided with an outwardly extending annular flange 4, which, if desired, may be in the form of a collar fixed by a set screw or the like to the elongated spindle base 3. This flange or collar 4 may directly engage the spindle rail 1, but it is preferred to place a washer 5 between and in engagement with the rail 1 and the flange 4, and this washer 5 may be made of resilient material such as rubber or it may be made of a hard plastic such as a polyamide.

In accordance with the present invention a resilient sleeve 6 made of rubber or the like surrounds the elongated spindle base 3 on one side of the rail 1, which is the lower side thereof, as viewed in Fig. 1. This resilient sleeve 6 has a substantially frusto-conical shape, as is evident from Fig. l. The upper, larger end 8 of the resilient sleeve 6 engages the spindle rail 1 and is maintained by suitable means against a radial displacement. In the embodiment of Fig. 1 this means for retaining the larger end of the sleeve 6 against radial displacement takes the form of an annular wall portion of the rail 1 which is formed with a groove 9 into which the end 8 of the sleeve 6 extends. The opposite end 7 of the sleeve 6 surrounds the spindle base 3 and directly engages the same, although it is possible to place another sleeve between the end 7 of the sleeve 6 and the base 3, if desired. A nut 10 is threadedly carried by the spindle base 3 and engages the end 7 of the resilient sleeve 6, so that by turning the nut 10 it is possible to adjust the stress in, the resilient sleeve 6, and in this way adjust the damping produced by the resilient sleeve 6. A lock nut is threadedly carried by the spindle 3 and engages the nut 10 to maintain the latter in its adjusted position, this lock nut not being illustrated in the drawings.

In the embodiment of the invention which is shown in Fig. 2, the resilient sleeve 6' is provided at its upper, larger end 8 with an outwardly extending annular flange, and the means which retains the end 8 of the sleeve 6' against radial displacement takes the form of a wall portion of the spindle rail 1 which is formed with an annular recess into which the end 8 of the sleeve 6' extends, this end 8 engaging the outer periphery of the annular recess 13, so that in this way the end 8 of the sleeve 6 of Fig. 2 is retained against radial displacement. Otherwise the sleeve 6 cooperates with the base 3 in the same way as the sleeve 6 of Fig. 1. The embodiment of Fig. 2 differs additionally over that of Fig. 1 in that a second frusto-conical sleeve 11 is located on the opposite side of the spindle rail 1 from the sleeve 6, this resilient sleeve 11 having its larger end engaging the spindle rail 1 and located in another recess 13 so as to be retained against radial displacement, as is evident from Fig. 2. The base 3 of Fig. 2 fixedly carries an outwardly extending annular flange 12 which engages the upper end of the sleeve 11, this upper end of the sleeve 11 extending about and directly engaging the base 3. Thus, by adjusting the nut 10 of Fig. 2 it is also possible to adjust the stress in the sleeves 6 and 11.

The embodiment of the invention which is illustrated in Fig. 3 is identical with that of Fig. 1 except that instead of a frusto-conical sleeve 6, the embodiment of Fig. 3 includes a cylindrical sleeve 14 also made of a resilient material such as rubber or the like. The upper, open end of the sleeve 14 extends into the groove 9 so as to be retained in this way against radial displacement, and the bottom end of the cylindrical sleeve 14 is provided with an end wall 15 formed with a central opening 16 of the same diameter as the base 3 and through which 3 the base 3 passes, so that tneen'd wall 1 engages the base 3. The nut 10 of Fig. 3 acts through a washer 19 shown in Fig. 3 against the end wall of the cylindrical sleeve 14 so as to adjust the stress of the latter. Otherwise the embodiment *of Fig. 3 is the same as that of Fig. 1-.

The 'emliedim'ent of Fig. 4 also is the same as that of Fig. 1 except that instead of a frusto conical sleeve =6, the embodiment of Fig. 4 includes a double walled sleeve 17 having an outer wall provided with an upper free 'end which extends into the groove 9 so as to be maintained in this way against radial displacement. The inner 'wall of the double walled sleeve has an end located adjacent the rail 1 and closely surrounding the spindle base 3, shown in Fig. 4. The double walled sleeve '17 has the portion where its inner and outer walls join each =othe1;

located distant from the spindle rail 1 and engaged 'by a Washer 19 which is acted on by the nut 10. Thus, with this arrangement turning of the nut 10 will adjust the stress in the outer wall of the sleeve 17, the inner wall having its stress substantially unaffected by turning of the nut 1t) because this inner wall is capable of sliding axially along the spindle base 3. However, it the inner Wall also engages the "spindle rail 1, then the stress of both the inner and outer walls of the sleeve 17 may be adjusted by turning the nut 10.

In the embodiments of Figs. 1 and 2 the nut it) canstitutes a nut means for adjusting the stress of the resilient sleeve, while in the embodiments of Figs. 3 and -'4 the nut means for adjusting the stress of the 'res-ttien'c posed between the same and the resilient sleeve.

It will be understood that each of the elements "described above, or two or rn'oie together, may also find a useful embodiment in other types of spinning and twisting maehine dlfiering trim the types described above.

While the invention has been illustrated and described as embodied in spindle b'a'se mounting structure's of spin- '4 ning and twisting machines, it is not intended 'to be 'liinited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.

Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can by applying 'current knowledge readily adapt it for various apptieattons without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this inventier; and, therefore, such asaptanees should and are intended to be com rehended within the meaning and range of equivalence of the following claim.

What is claimed as new and desired to be secured by Letters Patent is: p v 1 in a spinning and twistin machine, in combination, a spindle rail formed with an opening passing therethrough; an elongated spindle base extending with clearance thi bu'gh s'ai'd d iiag to "opposite sides of said fail; a

20 double waned resitient Sleeve sun-rounding "said ease 0'11 Said Oll'll -Wfl l bfsa'id sleeve. sleeve is constituted by the nut 10 and the washer 'inter- References Cited in the file of this patent UNITED STATES PATENTS 

